For my homebrew campaign.

Elderpine keep is a gigantic castle with multiple levels/tiers. Inhabitants within the walls: approx. 100.000 before the fire. Approx 80.000 after the fire.

City overview map: https://inkarnate.com/m/A1kRqd--elderpine-keep/

Tier 0: cave complex with below ground harbor (https://inkarnate.com/m/79nmW8--elderpine-keep-tier-0-harbor/)

Tier 1: commonfolk/traders/craftsmen (https://inkarnate.com/m/L5xv1L--tier-1-elderpine-keep/)

Tier 2: military and combat training grounds (https://inkarnate.com/m/7978yj--elderpine-keep-tier-2/)

Tier 3: Libraries and universities

Tier 4: Nobility

Tier 5: Royalty

The place where the wise and the smart spend most of their time. Here, on the third level of the city, is where the universities and the librarys are. located. In the early days, when the Geyon family was still expanding their infulence, the city gained the attention of the elventwins Daefnelt and Forenelt. For years the brother and sister had been looking for a place to share their knowlage of magic and lore. A place where they could devote their lives to the art of research. The Geyons welcomed them with open arms, seeing the potential benefit to their future kingdom.

During their first years the elves realised that learing is much more productive in a calm green enviroment as opposed to a place of marmer and stone.

After their deaths, this tier has been expanded upon with houses for the students to live in, parks to bring the mind at ease, caves to seclude oneself from the outside world and a rustic stream with fountains to give the illusion of being in nature. This campus i known and envied througout the enitre world.